9230 CD GreenwayWasteApex LF Methane Monitoring Report June 2025

Greenway Waste Hwy 55 CD Unit
Permit: 9230CDLF2014
I pENR USE ONLY: I I ❑Paper Report ❑Electronic Data - Email CD (data loaded: Yes / No Doc/Event #:
NC DENR I I Environmental Monitoring
Division of Waste Management - Solid Waste Reporting Form
Notice: This form and any information attached to it are "Public Records" as defined in NC General Statute 132-1. As such, these documents are
available for inspection and examination by any person upon request (NC General Statute 132-6).
Instructions:
Prepare one form for each individually monitored unit.
Please type or print legibly.
Attach a notification table with values that attain or exceed NC 2L groundwater standards or NC 2B surface water standards. The notification
must include a preliminary analysis of the cause and significance of each value. (e.g. naturally occurring, off -site source, pre-existing
condition, etc.).
Attach a notification table of any groundwater or surface water values that equal or exceed the reporting limits.
Attach a notification table of any methane gas values that attain or exceed explosive gas levels. This includes any structures on or nearby the
facility (NCAC 13B .1629 (4)(a)(i).
Send the original signed and sealed form, any tables, and Electronic Data Deliverable to: Compliance Unit, NCDENR-DWM, Solid Waste
Section, 1646 Mail Service Center, Raleigh, NC 27699-1646.
Solid Waste Monitoring Data Submittal Information
Name of entity submitting data (laboratory, consultant, facility owner):
Greenway Waste Solutions of Apex, LLC
Contact for questions about data formatting. Include data preparer's name, telephone number and E-mail address:
Name: Brandt R. Kayser, P.G. Phone: [phone]
E-mail: brandtftriffinbros.com
NC Landfill Rule: Actual sampling dates (e.g.,
Facility name: Facility Address: Facility Permit # (.0500 or .1600) October 20-24, 2006)
Greenway Waste Solutions of June 5, 2025
Apex, LLC (Hwy 55 CSD Landfill) 5940 Old Smithfield Road, Apex, NC 92-30 .0500
Environmental Status: (Check all that apply)
Initial/Background Monitoring ® Detection Monitoring ❑ Assessment Monitoring Corrective Action
T e of data submitted: (Check all that apply)
Groundwater monitoring data from monitoring wells ❑X Methane gas monitoring data
Groundwater monitoring data from private water supply wells ❑ Corrective action data (specify)
Leachate monitoring data ❑ Other(specify) water monitoring data
Notification attached?
® No. No groundwater or surface water standards were exceeded.
Yes, a notification of values exceeding a groundwater or surface water standard is attached. It includes a list of groundwater and surface water
monitoring points, dates, analytical values, NC 2L groundwater standard, NC 2B surface water standard or NC Solid Waste GWPS and
preliminary analysis of the cause and significance of any concentration.
Yes, a notification of values exceeding an explosive methane gas limit is attached. It includes the methane monitoring points, dates, sample
values and explosive methane gas limits.
Certification
To the best of my knowledge, the information reported and statements made on this data submittal and attachments are true and correct.
Furthermore, I have attached complete notification of any sampling values meeting or exceeding groundwater standards or explosive gas
levels, and a preliminary analysis of the cause and significance of concentrations exceeding groundwater standards. I am aware that there
are significant penalties for making any false statement, representation, or certification including the possibility of a fine and imprisonment.
Brandt R. Kayser, P.G. Environmental Compliance Officer 914-844-7048
Facility RepresentativSj�ome (Print) Title (Area Code) Telephone Number
6/11/25
Signature // / Date
19505 Liverpool Parkway, Cornelius, NC 28031
Facility Representative Address
Not Applicable
NC PE Firm License Number (if applicable effective May 1, 2009)
Affix NC Licensed/ Professional Geologist Seal
w11IfIr"'
11,
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24 3 f -
Revised 6/2009

METHANE MONITORING FORM
Landfill Name: Highway 55 Landfill
Sampler Name: Brandt Kayser, P.G.
Barometric Pressure: 29.78 in Hg
Temperature: 730 F
Weather Conditions: Overcast, calm, humid
Instrument: Landtec GEM 5000/G506613
Date: June 5, 2025
Location
Time
CH4
CH4 LEL
02
CO2
MMW-1
1105
0.0
0
12.8
9.1
MMW-2
1110
0.0
0
6.0
12.0
MMW-3
1120
0.0
0
14.6
6.4
MMW-4
1125
0.0
0
14.6
8.2
MMW-5
1135
0.0
0
17.1
3.2
MMW-6
1145
0.0
0
18.4
3.2
MMW-7
1150
0.0
0
20.5
0.1
MMW-8
1155
0.0
0
20.5
0.2
MMW-9
1230
0.0
0
20.6
0.1
MMW-10
1235
0.0
0
15.1
5.1
MMW-11R
1225
0.0
0
19.4
4.0
MMW-12
1220
0.5
10
17.5
7.4
MMW-13
1205
0.0
0
20.0
0.7
MMW-14
1200
0.0
0
20.6
0.1
Scale House
1210
0.0
0
21.0
0.0
Shop
1215
0.0
0
21.1
0.2
Comments: CH4 LEL is a calculated value based on 5% CH4 = 100% CH4 LEL

NC Division of Waste Management - Solid Waste Section
Landfill Gas Monitoring Data Form
Notice: This form and any it formation attached to it are "Public Records" as defined in NC General Statute 132-1. As such, these documents are
available for inspection and examination by any person upon request (NC General Statute 132-6).
Facility Name: Higgh9waay- 55 Landfill Permit Number:
Sampling Date: O Hi / �tJ NC Landfill Rule (.0500 or.1600): _
92-30
.0500
Sample Collector Name & Position: Brandt Kayser / Environmental Compliance Officer
Gas Meter Type & Serial Number: GEM 5000 Plus - G506613 Gas Meter Calibration Date: 9/13/2023
Field Calibration Date & Time: OAr wo
Field Calibration Gas Type (15/15 or35/50): 35/50 Field Calibration Gas Canister Expiration Date: 9/21/2025
Gas Meter Pump Rate: 690 cm3/min
Ambient Air Temperature: 3% °F Barometric Pressure 60. or mm Hg)bP'. 7 1 Weather Conditions:C%4ff,#'r4%A Aat 61 (Urea 1K
I e
Instructions: Under "Location or LFG Well", list monitoring well # or describe monitoring location (e.g., inside field office).
- Attach a test location map or drawing. Report methane readings as both % LEL and ° a CH4 by volume.
Convert % CH4 (by volume) to % LEL as follows: % methane (by volume)/20 = % LEL.
*Hydrogen Sulfide (H2S) gas monitoring may be required for Construction & Demolition Landfills (CDLFs). See
individital permit conditions and/or Facility LFG monitoring plan.
Location or
LFG Well ID
Sample
Tube
Purge
Time of
Day
Time
Pumped
(sec)
Initial
% LEL
Stabilized
% LEL
/o CH4
"
(volume)
% 02
v
(Volume)
% CO2
(volume)
% 2S•
NOTES
MMW-1
60 sec
((of
60
'—
0_0
cooppm
MMW-2
lao
0-0
G.0
U, .0
CO: ppm
MMW-3
/
l �0 o
0-0
i0
CO: 0 ppm
MMW-4
U it
0 0
�'. y�
/�
CO: e2 PPm
MMW-5
(l3 r
n
._.
0,6
�?
3_
/V�
V
CO: ppm
MMW-6
l(Tr
{'
0.0
l -�
C)
CO:0 ppm
MMW-7
l( r_0
0-
a
0
CO: ppm
MMW-8
l (TV
�—
'�
0,0
010- c"
11
OL
Q
CO: ppm
MMW-9
03 O
d
�r
Q
0
CO: ppm
MMW-10
�tT3
'^
0-0
micy ppm
MMW 11R
I
y- o
,Oq
V
COD ppm
MMW-12
t(n�
to
(0
0-y-
l
,qn,
0
CO:OPPm
NOTE: 1f needed, attach additional data forms to include additional LFG monitoring data locations for the facility.
ACTION LEVELS: Methane: >1.25% by volume (inside structures) AND >5% by volume (at facility boundary)
Hydrogen Sulfide: >1 % by volume (inside structures) AND >4% by volume (at facility boundary)
Certification
To the best of my knowledge, the information reported and statements made on this data submittal and attachments
are true and correct. I am aware that there are significant penalties for making any false statement, representation,
or certification including the possibility of a fine and imprisonment.
Environmental Compliance Officer
SIGNATURE TITLE
Revised — March 6, 2017

NC Division of Waste Management - Solid Waste Section
Landfill Gas Monitoring Data Form
Notice: This form and any information attached to it are "Public Records "as defined in NC General Statute 132-1. As such, these documents are
available for inspection and examination by any person upon request (NC General Statute 132-6).
Facility Name: Highway 55 Landfill Permit Number:
Sampling Date: _NC Landfill Rule (.0500 or.1600): _
92-30
.0500
Sample Collector Name & Position: Brandt Kayser / Environmental Compliance Officer
Gas Meter Type & Serial Number: GEM 5000 Plus - G506613 Gas Meter Calibration Date: 9/ 13/2023
Field Calibration Date & Time: � 65 �
Field Calibration Gas Type (15115 or 35150): 35/50 Field Calibration Gas Canister Expiration Date: 9/2 V2025
Gas Meter Pump Rate: 690 cmJ/min
Ambient Air Temperature.7r—p Barometric Pressure (a or min Hg).7- , ?i Weather Conditions: 0ye*1-d*,14 tr., � �_a ,12v(
Instructions: Under "Location or LFG Well", list monitoring well # or describe monitoring location (e.g., inside field office).
Attach a test location map lor drawing. Report methane readings as both % LEL and % CH4 by volume.
Convert °a CH4 (by volume) to % LEL as follows: % methane (by volume)/20 = % LEL.
*Hydrogen Sulfide (H2S) gas monitoring may be required for Consiniction & Demolition Landfills (CDLFs). See
individual permit conditions andlor Facility LFG monitoring plan.
Location or
LFG Well ID
Sample
Tube
Purge
Time of
Day
Time
Pumped
(sec)
Initial
% LEL
Stabilized
% LEL
% CH4
( volume )
% 02
(volume)
% CO2
(volume)
( i
% H2S'
e
NOTES
MMW-13
60 sec
Vor
60
•—
�_
_v
G,?
CO: 0ppm
MMW-14
1�
o'o0
,—
—
Q Q
P10, C
0—t
0
CO.n ppm
Scale House
O^ 0
a O
GYQ
G
CO: ppm
Shop
.
d
6
con ppm
NOTE: 1f needed, attach additional dataforms to include additional LFG monitoring data locations for the./aciluty.
ACTION LEVELS: Methane: >1.25% by volume (inside structures) AND >5% by volume (at facility boundary)
Hydrogen Sulfide: >1 % by volume (inside structures) AND >41'o by volume (at facility boundary)
Certification
To the best of my knowledge, the information reported and statements made on this data submittal and attachments
are true and correct. I am aware that there are significant penalties for making any false statement, representation,
or certification inc g the possibility of a fine and imprisonment.
t Environmental Compliance Officer
SIGNATU TITLE
Revised --March 6, 2017

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REFERENCE
1. EXISTING TOPOGRAPHY WITHIN PROPERTY BOUNDARY WAS PROVIDED AT 2-FT
CONTOUR INTERVALS BY PATTERSON LAND SURVEYING, PA.; DATE AUGUST 5,
2019.
2. LIDAR TOPOGRAPHY OUTSIDE PROPERTY BOUNDARY WAS ACQUIRED FROM NC
WAKE COUNTY GIS.
3. WETLANDS INFORMATION PROVIDED BY CWS ON APRIL 18, 2016.
4. FEMA FLOODPLAIN INFORMATION FROM NCFLOODMAPS. MAP NUMBERS:
3720074000J DATED 2006.
5. HISTORIC GROUNDWATER INFORMATION PROVIDED BY BP BARBER AND
ENVIRO-PRO, PC.
6. SEASONAL HIGH GROUNDWATER ELEVATION DATA PROVIDED BY ENVIRO-PRO,
PC, AND BASED ON A 2009 INVESTIGATION.
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CORPORATE LICENSE
NO. C-370
ABBREVIATIONS
SB
SOIL BORING
MW
MONITORING WELL
TOC
TOP OF CASE
G
GROUND
SHGW
SEASONAL HIGH GROUNDWATER
BR
BEDROCK
AUGREF
AUGER REFUSAL
BEFORE YOU 0I0I
CALL 1-800-632-4949
N.C. ONE -CALL CENTER
IT'S THE LAWI
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